Updating in memory JSON Object properties in Flow

Hello together

I need to analyze data with a Power Automate Flow. The flow will be very extensive. To be able to manage intermediate results per analyzed record in the flow, I thought about defining a JSON object as follows:

{
 "TotalTasks": 0,
 "OcrLabels": 0,
 "NotValidated": 0,
 "NOk": 0,
 "UTD": 0,
 "Ok": 0,
 "OverwriteUser": 0,
 "NotAvailableUser": 0,
 "OkSupervisor": 0
}

Above JSON Object is stored in a Variable called 'Validation'.

Now I want to access individual properties of the object at any point in the flow and, for example, increase the value by +1 or subtract -1, summarize intermediate some values, and so on... For increasing a property value by 1 I currently use the following line in a Compose Task:

setProperty(variables('Validation'), 'TotalTasks', add(variables('Validation')['TotalTasks'], 1))

In order for the value to be effectively stored in the object, I have to append a Set Variable Task after each Compose Task. If I want to update two values, I cannot append a Set Variable Task after the second Compose Task. No, I have to do a Set Variable directly after each Compose Task. This makes the flow extremely slow.

Is there a better solution to cache and edit data in the flow without having to store it in a DB or SharePoint or File?

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